-79.28% is the change from 526 to 109
Calculation steps:
[( 109 - 526 ) ÷ 526] x 100 = -79.28%
Formula
Percentage change = [(109 - 526) / 526] x 100
Subtract the new number by the original number
109 - 526 = -417
-417 ÷ 526 = -0.7927756653992395
-0.7927756653992395 x 100 = -79.28%